321345222543124 has 48 divisors (see below), whose sum is σ = 607986072016848. Its totient is φ = 147731844169728.

The previous prime is 321345222543109. The next prime is 321345222543139. The reversal of 321345222543124 is 421345222543123.

It is an interprime number because it is at equal distance from previous prime (321345222543109) and next prime (321345222543139).

It can be written as a sum of positive squares in 8 ways, for example, as 73635963699600 + 247709258843524 = 8581140^2 + 15738782^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491374884 + ... + 492028420.

It is an arithmetic number, because the mean of its divisors is an integer number (12666376500351).

Almost surely, 2^{321345222543124} is an apocalyptic number.

It is an amenable number.

321345222543124 is a deficient number, since it is larger than the sum of its proper divisors (286640849473724).

321345222543124 is a wasteful number, since it uses less digits than its factorization.

321345222543124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690604 (or 690602 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 43.

Subtracting 321345222543124 from its reverse (421345222543123), we obtain a palindrome (99999999999999).

The spelling of 321345222543124 in words is "three hundred twenty-one trillion, three hundred forty-five billion, two hundred twenty-two million, five hundred forty-three thousand, one hundred twenty-four".